Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8268097 | Grain-oriented electrical steel sheet and producing method therefor | Fumiaki Takahashi, Kazutoshi Takeda, Hiroyasu Fujii, Yoshiaki Natori | 2012-09-18 |
| 7998284 | Grain-oriented electrical steel sheet having high tensile strength insulating film and method of treatment of such insulating film | Kazutoshi Takeda, Fumiaki Takahashi, Hiroyasu Fujii, Fumikazu Andou | 2011-08-16 |
| 7981223 | Ultra-high magnetic flux density grain-oriented electrical steel sheet excellent in iron loss at a high magnetic flux density and film properties and method for producing the same | Eiichi Nanba, Katsuyuki Yanagihara, Satoshi Arai, Fumikazu Ando, Kazutoshi Takeda +2 more | 2011-07-19 |
| 7456724 | Electrical steel sheet for low-noise transformer and low-noise transformer | Hisashi Mogi, Masahiro Fujikura, Masato Mizokami, Masao Yabumoto, Osamu Akisue | 2008-11-25 |
| 7399369 | Ultra-high magnetic flux density grain-oriented electrical steel sheet excellent in iron loss at a high magnetic flux density and film properties and method for producing the same | Eiichi Nanba, Katsuyuki Yanagihara, Satoshi Arai, Fumikazu Ando, Kazutoshi Takeda +2 more | 2008-07-15 |
| 7063780 | Method for indirect-electrification-type continuous electrolytic etching of metal strip and apparatus for indirect-electrification-type continuous electrolytic etching | Hisashi Mogi, Naruhiko Nomura, Shigenobu Koga, Masahiro Fujikura | 2006-06-20 |
| 6733599 | Method for producing grain-oriented silicon steel sheet not having inorganic mineral film | Hiroyasu Fujii, Yoshiyuki Ushigami, Shuichi Nakamura, Kenichi Murakami, Norihiro Yamamoto +1 more | 2004-05-11 |
| 6461741 | Grain-oriented electromagnetic steel sheet with excellent coating properties and process for its manufacture | Kazutoshi Takeda, Hideyuki Kobayashi, Hiroyasu Fujii | 2002-10-08 |
| 6322688 | Method of forming an insulating film on a magnetic steel sheet | Masao Kurosaki, Kenichi Murakami, Yoshiyuki Ushigami | 2001-11-27 |
| 6005243 | Synchronous adjustment method, apparatus, and computer program product in a multiple beam optical system | — | 1999-12-21 |
| 5961744 | Grain oriented silicon steel sheet having low core loss and method of manufacturing same | Hiroyasu Fujii, Takeo Nagashima, Yoshiyuki Ushigami, Osamu Tanaka, Katsurou Kuroki +1 more | 1999-10-05 |
| 5926203 | Image recording method and apparatus using multiple laser beams | Akira Shimura, Tomohiro Nakajima, Masaki Narita | 1999-07-20 |
| 5786594 | Multi-beam pitch adjustment system and method | Tatsuya Ito, Tomohiro Nakajima, Katsumi Yamaguchi, Akira Shimura, Masaki Narita +1 more | 1998-07-28 |
| 5782998 | Grain oriented electrical steel sheet having specular surface | Yoshiyuki Ushigami, Takeo Nagashima, Hiroyasu Fujii, Yozo Suga, Tadashi Nakayama +2 more | 1998-07-21 |
| 5753051 | Oriented electrical steel sheet having low core loss and method of manufacturing same | Takao Kanai, Kei Tanemoto, Takeo Nagashima | 1998-05-19 |
| 5753907 | Multiple beam scanning apparatus | Tomohiro Nakajima, Masaki Narita, Akira Shimura | 1998-05-19 |
| 5679177 | Oriented electrical steel sheet having low core loss and method of manufacturing same | Takao Kanai, Kei Tanemoto, Takeo Nagashima | 1997-10-21 |
| 5587813 | Data transfer device for an image forming apparatus | Takashi Mama, Nobuyuki Sato, Takeshi Yamakawa, Shinji Kobayashi, Yoshio Kaneko +1 more | 1996-12-24 |
| 5565272 | Grain oriented silicon steel sheet having excellent primary film properties | Hiroaki Masui, Morio Shiozaki, Nobuyuki Takahashi, Hisashi Kabayashi, Takeo Nagashima +1 more | 1996-10-15 |
| 5557449 | Laser beam scanning apparatus for controlling diameter of light spot | Fumihiro Miyagawa | 1996-09-17 |
| 5509976 | Method for producing a grain-oriented electrical steel sheet having a mirror surface and improved core loss | Yoshiyuki Ushigami, Hiroyasu Fujii, Kenichi Murakami | 1996-04-23 |
| 5411808 | Oriented electrical steel sheet having low core loss and method of manufacturing same | Takao Kanai, Kei Tanemoto, Takeo Nagashima | 1995-05-02 |
| 4821335 | Electronic blackboard | Tatsuo Ishii | 1989-04-11 |
| 4760465 | Electronic blackboard which detects an abnormal operating condition by reading a non-image section of a writing surface at power-up | — | 1988-07-26 |
| 4595286 | Spread document copying method with variable magnification capability | — | 1986-06-17 |